Cutting machine



Feb. 21, 193.3.

F. AEsCHBAcH n CUTTING MACHINE Feb. 21, 1933. F. AEscHBAcH CUTTING MACHINE Filed Sept. 18, 1951 3 Sheets-Sheet 2 Feb. 21, 1933. F. AESCHBACH 1,898,160

CUTTING MACHINE Filed sept. 18, 1951 3 sheets-sheet 3 4L zil i* i y Patented Feb. 21, 1933 PATENT OFFICE FIEJBICH AESCEBACH, F AARAU, SWITZERLAND CUTTING MACHINE Application med September 18, 1931, Serial No. 568,620, and in Switzerland Iay 22, 1931.

The invention relates to improvements in cutting machines. Cutting machines having a plurality knives are known for cutting food stuis (bread, potatoes, carrots, etc.) into the shape of slices.

For some kinds of pre arin various food stuis their shape as litt e stic is the more suitable.

' 10 The subject matter of the present inven tion is a cutting machine having at least one sickle shaped cutting knife and a cutting table which is adjustable relatively to the knife and which permits the cutting of food stuis into the form of slices or of sticks. To this end .circular knives arranged at ri ht angles to the cutting knife like teeth o a.

2; ig. 4 is a plan view of the machine with the casing removed; f Fig. 5 is a sectionv along the line V--V in Figli through the cutting table,

ig. 6 is a section along line Vl--VIn Fig. 7 through the carrier of the cutting knives.

Fig. 7 is a plan view of that carrier.;

Fig. 8 is a section along line VIII- VIII in Fig. 7 through one arm of the carrierpf the cutting knives with a cutting knife Ascrewed thereto;

Fig. 9 is a section along line 1n Fi 1,0 of the carrier of the comb knives;

ig. 10 is a plan view of the carrier ofthe.

comb knives;

Fig. 11 is a. section along line XI--XI m Fig. 10 of an arm of the carrier of the comb knives with a comb knife screwed thereto, Fig. 12 shows in section the hub of the carrier of the comb kmves, f

Fig. 13 is a partial section of cutting table,

of sickle-shaped cutting 10 and 12), each of the slots has its counter `the hub 4a with its ends projecting out of cutting knife and comb knife in their osition for cutting the food stuff into the s ape of sticks, and A Fig. 14 is a similarsection as Fig. 13 with the parts in position for cutting the food 5 stuff into slices. f i

Referring now to the drawings the 'vertical shaft 1 of the machine is rotatably mount ed in the neck 2a of the part 2 of the casing. The latter comprises a funnel-shaped contalner 2b into which the material to be cut 1s filled and is pressed in the downward direction by the aid of a block 3 (Fig. 1). On the shaft l the hub 4a of the carrier 4 of thecutting knifes is keyed. The carrier is provided with sickle-shaped arms 4b (Fig. 7) to which the sickle-shaped cutting knives 5, are fixed by screws 6. s The interstices between the cutting knives are filled out by blade-shaped parts 7a Fig. 4) which are cast in one with the hub 7 and form together the cutting table 7. The latter is axially displaceable relatively. tothe shaft 1 and isl coupled to the carrier 4 of the cutting knives b means of a pin 8 projecting into a slot 7a ig. f1). On the hub '4a of the carrier oft e cutting knives the hub 9a of the carrier 9 rests loosely (Figs. 1 and 3). i. e. the hub 9a may be angularly and axially displacedl about the hub 4a. The carrier 9 is also rovided with sickle-shaped arms 9b to w 'ch the circular short knives' 9c arranged like the teeth of a comb and at right-angles to the cutting knives 5 and hereafter. called comb knives are xed by the set screws 10` (Figs. 9 and 10).

In the upper portion of the hub 9a'two axially extendin slots 11 and 12 of different depth are provi ed beside each other (Figs.

part diametrically opposite. A in 13 is `lixed in the shaft 1 at right ang esto the axis of the latter and passes also through the hub and adapted to enter into one or the other of the two slots 11, 12. In this manner two dilerent positions between the carrier 9 of the comb knives and the carrier 4 of the cutting knives 4; arexed as regards the axial and the angular direction. 10

The lower end of the driving shaft 1 is providedv with a threaded pin laon which a screw nut 14 is rovided, and to the end of the pin 1a a er screw nut' 14 is screwed.

The adjustment of the cutting table to a desired cutting thickness is made by the following means: In a lug 2c cast in one with the casing Aart 2 a pin 15 is mounted which serves asv 16, the inner forked-shaped. end of which cooperates with thehub 7 b ofthe cutting table and the outer end of which is acted upon by an adjusting screw 17 screwed into the eye 2d of the casing part 2. A slpring 18 urges the rzid of the lever against e a justing screw The operation of the above described cuttin .machine is as follows:

he food stuff to be cut is filled into the fillin funnel 2b and is loaded with the block 3. e cuttin table 7 is adjusted to a certain distance FA Fig. 14) .from the of the cutt knives 5, wheieby the thickness of the 'ces produced is determined.l

' lhis adjustment is made by turning the adjusting screw 17 in one or thev other direction. Thereby the lever 16 is turned about its fulcrum and the forked end of the lever 16 causes a raising or lowering of the cutting table 7. I

If it be desired to obtain the cut food stuff in the shape of little sticks the comb-knives 9c are brought into the position shown in Fig. 13 in which Athe cooperate with the cuttin knives. To this end the deeper slots 12 of I e hub -9a are made to cooperate with the projecting ends of the pin 13 and the carrier of the comb knives is secured in this position by tightening the screw nut 14. If the food stuff has thereafter to be cut again into shoes the 'screw nut 14 is so far unscrewed that the ends of the pin 13 can be withdrawn from the slots 12 of the hub 9a. Thereupon the hub 9a is slightly turned until the ends of the pin 13am above the less deep slots 11 and can be inserted into the latter the screw nut 14 is again screwed home. l'ilhe comb knives 9c occupy then a position relativel' to the cutting knives as illustrated in Fig. 1i

Instead o the circular knives 9c to a combknife as illustrated they may be siililgl screwed to the knife carrier 9. i

c aim: j

In a cutting" machine of the type described, in. combination, a casing, a vertical shaft mounted' iii said casing, a plurality of sickle-sha cutting knives, a carrier to which-sai knives are fixed, a hub on said carrier and fixed to said shaft, a cutting ta.

b le, means for raising and lowering said cutting table, which means include a two-armed lever having a fork-'shaped end engaging lcrum to a double armed lever ter being fulcrumed in the casing in which the female thread for said adjusting screw is provided, a plurality of knives shaped as portions of concentric cylindrical surfaces arranged like the teeth ofa comb and at right angles to said cutting knives, and means adapted to angularly and axially-displace said comb-knives to bring the latter into and out of cooperation with said cutting knives.

2. In a cutting machine of the type described, in combination, a casing, a vertical shaft mounted in said casing, a plurality of sickle-shaped cutting knives, a carrier to which said knives are fixed, a hub on said carrier and xed to said shaft, a cutting table, means for raising and lowering said cutting table, which means include a two-armed lever having a fork-shaped end engaging said hub, and an adjusting screw cooperating with the other end of the lever, the latter being fulcrumed in the casing in which the female thread for said adjusting screw is provided, a carrier having sickle-shaped arms and a hub, a plurality of knives arranged like the teeth of a comb and fixed to said arms, the cutting edges of said knives being shaped as portions of concentric cylindrical surfaces and standing at right angles to said cutting knives, a pin fixed to said shaft at right angles to the axis ofthe shaft, said pin adapted to coo ratel with notches of different de th provided in the hub`of the carrier of t e comb-knives, said notches being angularly displaced to secure the carrier and thereby the comb-knives in its o erative and nonoperative position as regar s the cutting knives, and a screw-threaded nut to exert an axial pressure on said carrier of the comb-knives and securing it in the desired position.

3. In a cutting machine of the type described, in combination, a casing, a vertical shaft mounted in said casing, a plurality of sickle-shaped cutting knives, a carrier to vwhich said knives are fixed, a hub on said carrier and fixed to said shaft, a cutting table, means for raising and lowering said cutting table, a plurality of knives shaped as portions of cylindrical surfaces and arranged like the teeth of a comb and at right angles to and below said cutting knives, and means ada ted to simultaneously displace all of said com knives in the axial direction and angularly aboutthe axis of the machine to bring said comb-knives into and out of cooperation withl said cutting knives.

4. In a cutting machine of the type described, in combination, at least one sickleshaped cutting knife, a cutting table adjustable relatively to said cutting knife, a plurality of knives shaped as portions of cylindrical surfaces and arranged like the teeth of a comb and at right angles to and below said cutting knife, and means adapted to raise said comb-knives by an `axial dis- 'nsA placement into cooperation with said cutting knife, the cutting edge of the said combknives bearing on the cuttingknife in the 0perative position, and to bring said comb knives out of cooperation with said cutting knife by an axial displacement in the down- Ward direotion and an angular displacement about the axis ofthe machine.

In testimony whereof, I have aiiixed Inysignature.

FRIEDRICH AESCHBACH. 

